rsync server under CentOS 8 with SELinux enabled

Here is a quick and useful tip on how to run a rsync daemon under CentOS 8 with SELinux in Enforcing mode.
There are three basic steps:

  1. rsync daemon installation and configuration.
  2. firewall configuration.
  3. SELinux configuration.

STEP 1) rsync daemon installation and configuration.

Under CentOS 8 rsync daemon files are in a separate rpm package rsync-daemon (more on the subject rsync daemon in CentOS 8):

[root@srv ~]# dnf install -y rsync-daemon
Last metadata expiration check: 2:45:48 ago on Thu Apr  7 07:40:42 2022.
Dependencies resolved.
 Package                     Architecture          Version                        Repository             Size
 rsync-daemon                noarch                3.1.3-14.el8                   baseos                 43 k

Transaction Summary
Install  1 Package

Total download size: 43 k
Installed size: 17 k
Downloading Packages:
rsync-daemon-3.1.3-14.el8.noarch.rpm                                           98 kB/s |  43 kB     00:00    
Total                                                                          81 kB/s |  43 kB     00:00     
Running transaction check
Transaction check succeeded.
Running transaction test
Transaction test succeeded.
Running transaction
  Preparing        :                                                                                      1/1 
  Installing       : rsync-daemon-3.1.3-14.el8.noarch                                                     1/1 
  Running scriptlet: rsync-daemon-3.1.3-14.el8.noarch                                                     1/1 
  Verifying        : rsync-daemon-3.1.3-14.el8.noarch                                                     1/1 



Keep on reading!

rsync daemon in CentOS 8

Apparently, the team behind the CentOS 8 decided to split the rsync functionality to two packages – one for the client-side and for the server-side, despite the binary rsync is only one and offers the client-size and server-side.
So there two packages in CentOS 8:

  1. rsync – provides the client-side and server-side as usual
  2. rsync-daemon – provides configuration example file and the systemd to start it as a service.

So if you wonder where is your rsync service after installing the rsync package under CentOS 8 you must install additional package “rsync-daemon”.

Of course, you may just create anywhere “rsyncd.conf” (the best place for the configuration file is in /etc, but could be placed anywhere with “–config=PATH/FILE” option) file and start the daemon as usual with “–daemon” option included to have the rsync server-side up and running.

rsync --daemon --config=/etc/rsyncd.conf

Just create yourself the configuration “/etc/rsyncd.conf” file.

Install the rsync program – the client and the daemon

dnf install rsync

Install the configuration and systemd files

dnf install rsync-daemon

rsync and rsync-daemon files

The files included in the two packages:

[root@srv ~]# dnf repoquery -l rsync-daemon
Last metadata expiration check: 0:33:02 ago on Wed 22 Jan 2020 02:57:06 PM UTC.
[root@srv ~]# dnf repoquery -l rsync
Last metadata expiration check: 0:33:06 ago on Wed 22 Jan 2020 02:57:06 PM UTC.